Data on paper forms available as PDF. Mundinger wrote down Wollensak counter numbers in reference to what was happening on tape. No changes to this tape's runtime were made during archival. The only edits I made were changes in amplitude. mf I was unable to synchronize counter numbers recorded on the data sheet with audio on the tape. mf Lots of background noise. First recording is of nestling that hatched 6 days ago. Starting at 6:11 from beginning of ML sample, males responding to playback of calls from lavender lavender female; recorded July 1, 1969. At 8:32 from beginning, recorded on July 2, but no counter numbers on data sheet. At 9:45 from beginning, recorded on July 7; tape speed reduced to 3.75ips. At 18:37 from beginning, recordist announces "July 14". Vocalizations distorted on original tape.